l(4-l)=96

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Solution for l(4-l)=96 equation:


Simplifying
l(4 + -1l) = 96
(4 * l + -1l * l) = 96
(4l + -1l2) = 96

Solving
4l + -1l2 = 96

Solving for variable 'l'.

Reorder the terms:
-96 + 4l + -1l2 = 96 + -96

Combine like terms: 96 + -96 = 0
-96 + 4l + -1l2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
96 + -4l + l2 = 0

Move the constant term to the right:

Add '-96' to each side of the equation.
96 + -4l + -96 + l2 = 0 + -96

Reorder the terms:
96 + -96 + -4l + l2 = 0 + -96

Combine like terms: 96 + -96 = 0
0 + -4l + l2 = 0 + -96
-4l + l2 = 0 + -96

Combine like terms: 0 + -96 = -96
-4l + l2 = -96

The l term is -4l.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4l + 4 + l2 = -96 + 4

Reorder the terms:
4 + -4l + l2 = -96 + 4

Combine like terms: -96 + 4 = -92
4 + -4l + l2 = -92

Factor a perfect square on the left side:
(l + -2)(l + -2) = -92

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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